JP2007281484A - 白色発光ダイオードおよびその製造方法 - Google Patents
白色発光ダイオードおよびその製造方法 Download PDFInfo
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- JP2007281484A JP2007281484A JP2007102125A JP2007102125A JP2007281484A JP 2007281484 A JP2007281484 A JP 2007281484A JP 2007102125 A JP2007102125 A JP 2007102125A JP 2007102125 A JP2007102125 A JP 2007102125A JP 2007281484 A JP2007281484 A JP 2007281484A
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
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- C—CHEMISTRY; METALLURGY
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/88—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
- C09K11/881—Chalcogenides
- C09K11/883—Chalcogenides with zinc or cadmium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
【解決手段】紫外発光ダイオードと、前記紫外発光ダイオードの上面に形成された、緑色蛍光体と青色蛍光体とを含む混合蛍光体層と、前記混合蛍光体層の上面に形成された、赤色発光量子ドットを含む赤色発光量子ドット層と、を含むことを特徴とする、白色発光ダイオードである。
【選択図】図3
Description
混合蛍光体層は、好ましくは、緑色蛍光体および青色蛍光体を、適切な有機溶媒および有機バインダである有機高分子またはその前駆体を混合した有機バインダ溶液と所定の割合で混合し、その混合物をUV−LEDの上面にコートした後、乾燥させることにより形成される。
赤色発光量子ドット層は、好ましくは、赤色発光特性を有する赤色発光量子ドットをシリコン系分散剤を用いて有機バインダを含む溶液に分散させ、前記混合蛍光体層の上面にコートして形成される。
トリオクチルアミン(Trioctyl amine、以下「TOA」という)16g、オレイン酸(Oleic acid、以下「OA」という)0.5gおよびカルコゲン前駆体である酸化カドミウム0.4mmolを125mLの還流コンデンサ付きフラスコに仕込み、真空状態に維持しながら、反応温度を約150℃まで上昇させた。この際、混合物を700rpm以上で攪拌した。150℃になると、真空雰囲気から窒素雰囲気に変え、温度を300℃まで上昇させた。これとは別に、窒素雰囲気下でSe粉末を溶媒である純度97%のトリオクチルホスフィン(Trioctyl phosphine、以下「TOP」という)に溶かしてSe濃度約0.2M程度のSe−TOP錯体(金属前駆体)溶液を調製した。攪拌しながら300℃の混合物にSe−TOP錯体溶液1mLを速やかに注入し、約4分間反応させた。その後、n−オクタンチオール(n−octane thiol)をTOAに溶かして0.2Mの濃度にした溶液1mLを反応混合物に速やかに注入して約30分間反応させた。反応中では攪拌速度と窒素雰囲気を保持した。
UV−LEDチップとして約400nmの最大発光波長(λmax)のチップ(Photonix社製)を使用した。
前記実施例1によって製造された多層構造の白色発光ダイオードに対し、下記の条件下でスペクトルの経時変化の測定を行い、その結果を図5に示した。
*冷却:熱電冷却器(Thermo Electro Cooler)で十分に冷却
*測定:1分間隔で38時間測定
図5を参照すると、実施例1の多層構造の白色発光ダイオードの発光は、赤色発光材料を紫外光励起する場合のような効率の減少が見られず、むしろ時間経過に伴って赤色光の発光強度が増加した後、安定化する現象を示した。すなわち、紫外光による量子ドットの大きさの減少に起因するブルーシフトは観察されなかった。
図6は紫外光に対する赤色発光量子ドットの安定性を評価するために、赤色発光量子ドットをPDMSに混合してUV−LED上に塗布し、400nm付近の近紫外光励起の際の、初期駆動時と100時間駆動後との赤色発光量子ドットの発光強度の変化を測定したグラフである。ここで、CdSe赤色発光量子ドットとPDMSとの混合比は、質量比で約1:10000であった。
紫外光よりエネルギーが相対的に低い青色光を用いて赤色発光量子ドットの発光および安定性を評価した。
*駆動電流:500mA
*Emission Imax=462nm
*試料:赤色発光量子ドット(CdSe)トルエン溶液
*赤色発光量子ドット(2種):自作(SAIT−1)、市販品(エヴィデントテクノロジーズ社製Evidots)
前述した条件の下における時間経過による赤色発光量子ドットの発光強度の変化を図8aおよび図8bに示した。
2 蛍光体、
3 第1光源、
4 ホストマトリックス、
5 量子ドット、
10 UV−LED、
20 混合蛍光体層、
30 赤色発光量子ドット層。
Claims (13)
- 紫外発光ダイオードと、
前記紫外発光ダイオードの上面に形成された、緑色蛍光体と青色蛍光体とを含む混合蛍光体層と、
前記混合蛍光体層の上面に形成された、赤色発光量子ドットを含む赤色発光量子ドット層と、
を含むことを特徴とする、白色発光ダイオード。 - 前記緑色蛍光体は、BaMgAl10O17:Eu,Mn、Zn2SiO4:Mn、(Zn,A)2SiO4:Mn(Aはアルカリ土類金属である)、MgAlxOy:Mn(xは1〜10の整数であり、yは1〜30の整数である)、LaMgAlxOy:Tb(xは1〜14の整数であり、yは8〜47の整数である)、ReBO3:Tb(ReはSc、Y、La、Ce、およびGdよりなる群から選択される1以上の希土類元素である)、および(Y,Gd)BO3:Tbよりなる群から選択される少なくとも1種であることを特徴とする、請求項1に記載の白色発光ダイオード。
- 前記青色蛍光体は、Sr(PO4)3Cl:Eu2+、ZnS:Ag,Cl、CaMgSi2O6:Eu、CaWO4:Pb、Y2SiO5:Eu、およびSr4Al14O25:Eu,Dyよりなる群から選択される少なくとも1種であることを特徴とする、請求項1または2に記載の白色発光ダイオード。
- 前記青色蛍光体と前記緑色蛍光体との質量比は2:1〜4:1であることを特徴とする、請求項1〜3のいずれか1項に記載の白色発光ダイオード。
- 前記赤色発光量子ドットは、CdS、CdSe、CdTe、ZnS、ZnSe、ZnTe、HgS、HgSe、HgTeよりなる群から選択される少なくとも1種のII−VI族化合物半導体ナノ結晶、GaN、GaP、GaAs、InP、InAsよりなる群から選択される少なくとも1種のIII−V族化合物半導体ナノ結晶、またはこれらの混合物であることを特徴とする、請求項1〜4のいずれか1項に記載の白色発光ダイオード。
- 前記赤色発光量子ドット層は、3mm以下の厚さであることを特徴とする、請求項1〜5のいずれか1項に記載の白色発光ダイオード。
- 紫外発光ダイオードの上面に緑色蛍光体と青色蛍光体とを含む混合蛍光体層を形成する段階と、
前記混合蛍光体層の上面に赤色発光量子ドット層を形成する段階と、
を含むことを特徴とする、白色発光ダイオードの製造方法。 - 前記混合蛍光体層は、有機バインダをさらに含むことを特徴とする、請求項7に記載の製造方法。
- 前記混合蛍光体層を形成する方法は、ドロップキャスティング法、スピンコーティング法、ディップコーティング法、スプレーコーティング法、フローコーティング法、またはスクリーン印刷法であることを特徴とする、請求項7または8に記載の製造方法。
- 前記混合蛍光体層を形成する段階は、前記緑色蛍光体および前記青色蛍光体を含む混合物を前記紫外発光ダイオードの上面にコートした後、乾燥させることを含み、前記混合物の乾燥温度は100〜150℃であることを特徴とする、請求項7〜9のいずれか1項に記載の製造方法。
- 前記青色蛍光体および緑色蛍光体の合計の質量と有機バインダの質量との比は1:1〜1:3であることを特徴とする、請求項8〜10のいずれか1項に記載の製造方法。
- 前記赤色発光量子ドット層は、赤色発光量子ドットと有機バインダとを含むことを特徴とする、請求項7〜11のいずれか1項に記載の製造方法。
- 前記赤色発光量子ドットと前記有機バインダとの質量比は1:1000〜1:25000であることを特徴とする、請求項12に記載の製造方法。
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010137533A1 (ja) * | 2009-05-28 | 2010-12-02 | 住友化学株式会社 | 表面処理蛍光体粒子の製造方法及び表面処理蛍光体粒子 |
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Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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DE102010028246A1 (de) | 2010-04-27 | 2011-10-27 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauelement und Verfahren zum Herstellen eines optoelektronischen Bauelements |
US8735791B2 (en) | 2010-07-13 | 2014-05-27 | Svv Technology Innovations, Inc. | Light harvesting system employing microstructures for efficient light trapping |
CN102563545B (zh) | 2010-12-17 | 2015-05-06 | 杜比实验室特许公司 | 用于显示器的量子点调制 |
EP2655961A4 (en) | 2010-12-23 | 2014-09-03 | Qd Vision Inc | OPTICAL ELEMENT CONTAINING QUANTUM POINTS |
KR101822537B1 (ko) | 2011-03-31 | 2018-01-29 | 삼성디스플레이 주식회사 | 발광 다이오드 패키지, 이의 제조 방법, 및 이를 갖는 표시 장치 |
US9412905B2 (en) | 2011-04-01 | 2016-08-09 | Najing Technology Corporation Limited | White light emitting device |
KR20130009524A (ko) | 2011-07-15 | 2013-01-23 | 삼성디스플레이 주식회사 | 표시 장치 |
US9097826B2 (en) | 2011-10-08 | 2015-08-04 | Svv Technology Innovations, Inc. | Collimating illumination systems employing a waveguide |
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CN102913815A (zh) * | 2012-09-26 | 2013-02-06 | 苏州佳世达电通有限公司 | 光源模组及其相关背光系统 |
EP2904604B1 (en) | 2012-10-04 | 2018-07-11 | Nanoco Technologies Ltd | Illuminated signage using quantum dots |
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US9142732B2 (en) | 2013-03-04 | 2015-09-22 | Osram Sylvania Inc. | LED lamp with quantum dots layer |
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KR101944922B1 (ko) * | 2017-12-29 | 2019-02-01 | 삼성전자주식회사 | 백색 발광 다이오드, 백라이트 유닛, 및 이를 포함한 액정 디스플레이 장치 |
KR20190118697A (ko) | 2018-04-10 | 2019-10-21 | 삼성디스플레이 주식회사 | 표시 장치 |
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KR102263850B1 (ko) * | 2019-01-31 | 2021-06-11 | 비에이메테리얼스(주) | 방충용 백색 led 패키지 |
CN110922961B (zh) * | 2019-11-27 | 2020-11-10 | 深圳市华星光电半导体显示技术有限公司 | 钙钛矿微球、混色光转换薄膜、以及显示器 |
EP4406858A1 (en) * | 2023-01-24 | 2024-07-31 | Goodrich Lighting Systems GmbH & Co. KG | Aircraft light, aircraft comprising an aircraft light, and method of manufacturing an aircraft light |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002510866A (ja) * | 1998-04-01 | 2002-04-09 | マサチューセッツ・インスティテュート・オブ・テクノロジー | 量子ドット白色及び着色発光ダイオード |
JP2002176201A (ja) * | 2000-12-05 | 2002-06-21 | Okaya Electric Ind Co Ltd | 半導体発光素子 |
JP2002314143A (ja) * | 2001-04-09 | 2002-10-25 | Toshiba Corp | 発光装置 |
JP2004071908A (ja) * | 2002-08-07 | 2004-03-04 | Matsushita Electric Works Ltd | 発光装置 |
JP2004207047A (ja) * | 2002-12-25 | 2004-07-22 | Fujitsu Ltd | 蛍光体層及びそれを用いたプラズマディスプレイパネル |
JP2004296987A (ja) * | 2003-03-28 | 2004-10-21 | Okaya Electric Ind Co Ltd | 発光ダイオード及びその製造方法 |
JP2005005249A (ja) * | 2003-06-10 | 2005-01-06 | Samsung Sdi Co Ltd | プラズマディスプレイパネル |
JP2005008843A (ja) * | 2003-06-18 | 2005-01-13 | Kasei Optonix Co Ltd | Sm付活赤色発光蛍光体及びこれを用いた発光素子 |
JP2005285800A (ja) * | 2004-03-26 | 2005-10-13 | Kyocera Corp | 発光装置 |
WO2005097939A1 (ja) * | 2004-03-30 | 2005-10-20 | Idemitsu Kosan Co., Ltd. | 蛍光変換媒体及びカラー発光装置 |
US20060066210A1 (en) * | 2004-09-30 | 2006-03-30 | Ng Kee Y | Light source with wavelength converting material |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6226318B1 (en) | 1998-03-31 | 2001-05-01 | Zenith Electronics Corporation | Detection of code vectors in single frequency, multiple transmitter networks |
KR100672855B1 (ko) * | 1998-07-20 | 2007-01-22 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 광방출 디바이스용 기판, 기판을 포함하는 폴리-led, 및 광방출 디바이스용 적층 제조 방법 |
US6166489A (en) * | 1998-09-15 | 2000-12-26 | The Trustees Of Princeton University | Light emitting device using dual light emitting stacks to achieve full-color emission |
JP2001111114A (ja) | 1999-10-06 | 2001-04-20 | Sony Corp | 白色led |
JP4366920B2 (ja) * | 2002-11-07 | 2009-11-18 | ソニー株式会社 | 平面型表示装置及びその製造方法 |
JPWO2004074739A1 (ja) * | 2003-02-21 | 2006-06-01 | 三洋電機株式会社 | 発光素子及びディスプレイ |
US6831302B2 (en) * | 2003-04-15 | 2004-12-14 | Luminus Devices, Inc. | Light emitting devices with improved extraction efficiency |
KR100616513B1 (ko) * | 2003-11-01 | 2006-08-29 | 삼성전기주식회사 | 적색형광체, 그 제조방법, 이를 이용한 적색 led소자,백색 led 소자 및 능동 발광형 액정 디스플레이 소자 |
US7318651B2 (en) * | 2003-12-18 | 2008-01-15 | Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. | Flash module with quantum dot light conversion |
KR100635992B1 (ko) * | 2004-06-03 | 2006-10-18 | 라이트-온 테크놀로지 코오포레이숀 | 백색광 발광 장치 및 그 제조 방법 |
KR100674831B1 (ko) * | 2004-11-05 | 2007-01-25 | 삼성전기주식회사 | 백색 발광 다이오드 패키지 및 그 제조방법 |
KR100682874B1 (ko) * | 2005-05-02 | 2007-02-15 | 삼성전기주식회사 | 백색 led |
-
2006
- 2006-04-10 KR KR1020060032318A patent/KR100783251B1/ko active IP Right Grant
-
2007
- 2007-02-07 US US11/672,285 patent/US8017972B2/en active Active
- 2007-04-09 JP JP2007102125A patent/JP5295518B2/ja active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002510866A (ja) * | 1998-04-01 | 2002-04-09 | マサチューセッツ・インスティテュート・オブ・テクノロジー | 量子ドット白色及び着色発光ダイオード |
JP2002176201A (ja) * | 2000-12-05 | 2002-06-21 | Okaya Electric Ind Co Ltd | 半導体発光素子 |
JP2002314143A (ja) * | 2001-04-09 | 2002-10-25 | Toshiba Corp | 発光装置 |
JP2004071908A (ja) * | 2002-08-07 | 2004-03-04 | Matsushita Electric Works Ltd | 発光装置 |
JP2004207047A (ja) * | 2002-12-25 | 2004-07-22 | Fujitsu Ltd | 蛍光体層及びそれを用いたプラズマディスプレイパネル |
JP2004296987A (ja) * | 2003-03-28 | 2004-10-21 | Okaya Electric Ind Co Ltd | 発光ダイオード及びその製造方法 |
JP2005005249A (ja) * | 2003-06-10 | 2005-01-06 | Samsung Sdi Co Ltd | プラズマディスプレイパネル |
JP2005008843A (ja) * | 2003-06-18 | 2005-01-13 | Kasei Optonix Co Ltd | Sm付活赤色発光蛍光体及びこれを用いた発光素子 |
JP2005285800A (ja) * | 2004-03-26 | 2005-10-13 | Kyocera Corp | 発光装置 |
WO2005097939A1 (ja) * | 2004-03-30 | 2005-10-20 | Idemitsu Kosan Co., Ltd. | 蛍光変換媒体及びカラー発光装置 |
US20060066210A1 (en) * | 2004-09-30 | 2006-03-30 | Ng Kee Y | Light source with wavelength converting material |
Cited By (22)
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WO2010137533A1 (ja) * | 2009-05-28 | 2010-12-02 | 住友化学株式会社 | 表面処理蛍光体粒子の製造方法及び表面処理蛍光体粒子 |
CN101906301A (zh) * | 2010-02-05 | 2010-12-08 | 四川新力光源有限公司 | 红色荧光粉及其制备方法和led光源器件 |
JP2011202148A (ja) * | 2010-03-03 | 2011-10-13 | Sharp Corp | 波長変換部材、発光装置および画像表示装置ならびに波長変換部材の製造方法 |
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JP2014523634A (ja) * | 2011-05-31 | 2014-09-11 | ナノコ テクノロジーズ リミテッド | 発光ダイオード、オプトエレクトロニクスディスプレイ等に使用される半導体ナノ粒子ベース材料 |
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US9796920B2 (en) | 2014-01-29 | 2017-10-24 | Daicel Corporation | Quantum dot composite and wavelength conversion element, photoelectric conversion device, and solar cell having the composite |
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Also Published As
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KR20070101046A (ko) | 2007-10-16 |
US20070246734A1 (en) | 2007-10-25 |
US8017972B2 (en) | 2011-09-13 |
KR100783251B1 (ko) | 2007-12-06 |
JP5295518B2 (ja) | 2013-09-18 |
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